'Grizzly Adams' star Dan Haggerty dead at 74

Dan Haggerty, best known for his role in "The Life and Times of Grizzly Adams," died Friday morning, his close friend and manager told FOX411. He was 74.

The '70s star died of cancer surrounded by his kids, his manager told us. Haggerty had been battling cancer since July.

"He had cancer and had been fighting since July, and he had a great Thanksgiving and a great Christmas, and he died with his kids around him and people who love him," his manager said.

Haggerty starred as the loveable mountain man first in the 1974 movie and later in the TV series by the same name. Haggerty's character, James Capen "Grizzly" Adams, was best friends with a grizzly bear in the 1977 show.